Improvement in hose-pipe couplings



G.-1-1.BUzzELL.

y d HOSE-PIPE COUPLLNG. f No,177,686." Patented Mayas, 187e.

UNITED STATES PATENT QEEIcE.

GEORGE H. BUZZELL, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN HOSE-PIPE COUPLINGS.

Specification forming part of Letters Patent No. 177,686, dated May 23, 1876; application filed April 20, 1876.

To all whom it may concern:

Be it known that I, GEORGE H. BUZZELL, of Boston, in the county of Suffolk, State of Massachusetts, have invented a certain new and useful Improvement in Hose-Pipe Coup-4 lings, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which my invention appertains to make. and use the same, reference being had to the accompanying drawing, forming a part of this speeication, in which- Figure 1 is an isometrical perspective view, and Fig. 2 a vertical longitudinal section. `Like letters of reference indicate corresponding parts in the different figures of the drawing.

Myinvention relates, principally, to that i class of hose-pipe couplings which are deby which a more'eft'ective device of this character is produced than is nowin ordinary use.

The nature and operation of my invention will be readily understood by all conversant with such matters from the following description.

In the drawing, A B represent `the body of the coupling, which is composed of two dctachable sections or parts, formed as best seen 1n Fig. 2. The section B is provided with an annular groove or socket, J, cut in the face of ts inner end, into which a corresponding ilange, m, on the part A projects when the wo sections are' joined or in position. The outer end of the section A is exteriorly threaded to receive the thimble F, and in its face there is an annular groove or channel, z, which 1 onverges or is narrowest at the bottom, formng the conical nipple H. A metallic ring, G,

the form of a hollow conicalfrustum, with an outwardlyprojecting flange, a, around its united by means of the springhooks G engaging with the shoulder The construction of the outer end of the part B corresponds with that of the'part A.

In the use of my improved coupling the end of the'hose is passed through the hole in the top of the thimble F. The ring G is then slipped over the hose and alongr the same into the thimble, the flange on the ring being arranged adjoining the inner side of the head or top of the thimble. The end of the hose is then pushed on over the nipple H, and the thimble F screwed onto the section A, forcing the ring G into the groove z, and securely wedgin g or confining the hose in the coupling,

the corresponding section of hose being se? cured in the section B in the same manner.

To increase the friction between the nipple and hose the outer side of the former, near its base, is corrugated, as shown at w.

Having thus explained my improvement, what I claim is- The improved hose-pipe coupling described, consisting of the part A, provided with the lian ge m, shoulder z', thimble F, ring G, groove z, and nipple H, and the part B, provided with the socket J, springhook C, thimble F, ring G, groove z, and nipple H, all constructed and arranged to operate in combination with the pipe I, substantially as set forth and specified.

C. A. SHAW, l H. E. METGALE. 

